package com.atguigu.gulimail.product.service.impl;

import com.atguigu.gulimail.product.entity.AttrEntity;
import com.atguigu.gulimail.product.service.AttrService;
import com.atguigu.gulimail.product.vo.AttrGroupWithAttrsVo;
import com.atguigu.gulimail.product.vo.SpuItemAttrGroupVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimail.product.dao.AttrGroupDao;
import com.atguigu.gulimail.product.entity.AttrGroupEntity;
import com.atguigu.gulimail.product.service.AttrGroupService;
import org.springframework.util.StringUtils;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {
@Autowired
    AttrService attrService;
//    @Override
//    public PageUtils queryPage(Map<String, Object> params) {
//        IPage<AttrGroupEntity> page = this.page(
//                new Query<AttrGroupEntity>().getPage(params),
//                new QueryWrapper<AttrGroupEntity>()
//        );
//
//        return new PageUtils(page);
//    }

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
        String key = (String) params.get("key");
        QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>();
        if (!StringUtils.isEmpty(key)) {
            wrapper.and((obj) -> {
                obj.eq("attr_group_id", key).or().like("attr_group_name", key);
            });
        }
        if ((catelogId == 0)) {
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);

            return new PageUtils(page);
        } else {
           wrapper.eq("catelog_id",catelogId);
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        }
    }

    /**
     * 根据分类id查出分组信息，以及这些组里面的属性
     * @param catelogId
     * @return
     */
    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
//        1.查询分组信息
        List<AttrGroupEntity> attrGroupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id",catelogId));
//    2.查询每组的所有属性
        List<AttrGroupWithAttrsVo> collect = attrGroupEntities.stream().map(group -> {
            AttrGroupWithAttrsVo attrsVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(group,attrsVo);
            List<AttrEntity> attrs = attrService.getRelationAttr(attrsVo.getAttrGroupId());
           attrsVo.setAttrs(attrs);
            return attrsVo;
        }).collect(Collectors.toList());
        return collect;
    }

    @Override
    public List<SpuItemAttrGroupVo> getAttrGroupWithAttrsBySpuId(Long spuId, Long catalogId) {
       //需要查询出当前spu对应的所有属性的分组i西南西以及当前分组下的所有属性

        List<SpuItemAttrGroupVo> vos = baseMapper.getAttrGroupWithAttrsBySpuId(spuId,catalogId);
        return vos;
    }
}